CVS
/ˌsiː viː ˈɛs/ · Abbreviation · Open Source
Definitions
Concurrent Versions System, an early version control system widely used before tools like Subversion and Git became dominant. It is remembered as an important but limited step in the evolution of collaborative source control.
In plain English: An older source control system used before more modern tools became standard.
Example: "The migration off CVS took weeks because branch history and tags had to be translated carefully."